Home / 5,425.09-8,137.63-1,528.99

Finding the Fourth Proportional to 5,425.09, 8,137.63 and 1,528.99

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Solution

The fourth proportional to 5,425.09, 8,137.63 and 1,528.99 is: 2,293.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.09 : 8,137.63 = 1,528.99 : x
  2. Step 2: Convert to fraction form
    5,425.09/8,137.63 = 1,528.99/x
  3. Step 3: Cross multiply
    5,425.09x = 8,137.63 × 1,528.99
  4. Step 4: Simplify right side
    5,425.09x = 12,442,354.89
  5. Step 5: Solve for x
    x = 12,442,354.89/5,425.09
  6. Step 6: Final answer
    x = 2,293.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.